T.G. you've covered the issues very nicely. While you have dealt with it by defining actual critters with alignment requirements, I would rather not have the alignment requirements but base each Legacy off of an alignment type.. i.e... chaos, law, ....etc.. I feel that alignment restrictions for the warlock doesn't support the freedom of choice for the pc. Of course, I am viewing the warlocks powers as gained from an ancestor and passed down. There could be a different Legacy dealing with pc's that did make a pack with a supernatural being.